From: Jens Axboe <jaxboe@fusionio.com>
To: Rob Landley <rlandley@parallels.com>
Cc: Pete Clements <clem@clem.clem-digital.net>,
linux-kernel <linux-kernel@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
Tejun Heo <tj@kernel.org>
Subject: Re: Commit 7eaceaccab5f40 causing boot hang.
Date: Sat, 9 Apr 2011 05:00:19 +0200 [thread overview]
Message-ID: <4D9FCBC3.9040206@fusionio.com> (raw)
In-Reply-To: <4D9FCAF6.5030301@parallels.com>
On 2011-04-09 04:56, Rob Landley wrote:
> On 03/31/2011 06:09 AM, Jens Axboe wrote:
>> On 2011-03-31 12:47, Rob Landley wrote:
>>> On 03/31/2011 05:37 AM, Jens Axboe wrote:
>>>>>>> Can you send me your .config?
>>>>>>
>>>>>> It was attached to the first message in this series, here it is again.
>>>>>>
>>>>>> I update it via "make oldconfig" and hold down return.
>>>>>>
>>>>>> I boot it via:
>>>>>>
>>>>>> qemu-system-x86_64 -m 1024 -kernel arch/x86/boot/bzImage \
>>>>>> -hda ~/sid.ext3 -append "root=/dev/hda rw"
>>>>>
>>>>> Much better, I see the hang now! Now to try and diagnose...
>>>>
>>>> It seems to hard hang, looks very odd:
>>>
>>> I should have mentioned that: when it hangs, you can't page back up in
>>> the console display anymore.
>>
>> Data point - only seems to happen on UP. If you add -smp X to kvm, then
>> it boots and works just fine. It smells oddly like some sort of irq
>> event.
>>
>
> The workaround for this is to disable preemption, by the way.
Indeed, I think those bits were mentioned earlier. I will get to this
early next week, been away traveling and not back yet.
--
Jens Axboe
next prev parent reply other threads:[~2011-04-09 3:00 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-29 6:19 Commit 7eaceaccab5f40 causing boot hang Rob Landley
2011-03-29 6:35 ` Jens Axboe
2011-03-29 8:52 ` Rob Landley
2011-03-29 13:59 ` Jens Axboe
2011-03-29 14:13 ` Rob Landley
2011-03-29 14:16 ` Jens Axboe
2011-03-29 15:51 ` Pete Clements
2011-03-30 6:06 ` Rob Landley
2011-03-30 11:38 ` Jens Axboe
2011-03-30 13:52 ` Rob Landley
2011-03-31 9:02 ` Jens Axboe
2011-03-31 9:11 ` Rob Landley
2011-03-31 10:07 ` Jens Axboe
2011-03-31 10:37 ` Jens Axboe
2011-03-31 10:47 ` Rob Landley
2011-03-31 11:09 ` Jens Axboe
2011-04-01 3:11 ` Nicholas A. Bellinger
2011-04-03 7:05 ` Andreas Mohr
2011-04-01 12:26 ` Mark Lord
2011-04-09 2:56 ` Rob Landley
2011-04-09 3:00 ` Jens Axboe [this message]
2011-03-31 12:11 ` Tejun Heo
2011-03-31 12:33 ` Jens Axboe
2011-03-31 13:09 ` Richard Kennedy
2011-03-31 13:18 ` Jens Axboe
2011-03-31 13:23 ` Richard Kennedy
2011-03-31 13:33 ` Jens Axboe
2011-03-31 14:49 ` Richard Kennedy
2011-04-04 13:47 ` Richard Kennedy
2011-04-13 10:25 ` Richard Kennedy
2011-04-13 10:36 ` Jens Axboe
2011-04-06 11:55 ` Rob Landley
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